public string GetUsername(int userid)
{
if (!usernames.ContainsKey(userid)) // Caching in dictionary to reduce DB calls
{
string username = Authenticate.ConvertIdToUsername(userid);
usernames.Add(userid, username);
return(username);
}
else
{
return(usernames[userid]);
}
}
protected void ButtonChooseRecipient_Click(object sender, EventArgs e)
{
int otherid = -1;
int currentid = CurrentUser.GetUserId();
string username;
// Validate Username
if (string.IsNullOrWhiteSpace(ReceiverId.Text))
{
Msg.Text = "Username entered is empty";
return;
}
else
{
otherid = Authenticate.ConvertUsernameToId(ReceiverId.Text);
username = ReceiverId.Text;
}
// Validate UserID exists
if (otherid == -1)
{
Msg.Text = "No recipient by this username was found";
return;
}
else if (otherid == currentid)
{
Msg.Text = "You cannot start a conversation with yourself!";
return;
}
else if (otherid != currentid && otherid > 0)
{
ViewState["thisParty"] = CurrentUser.GetUserId();
ViewState["otherParty"] = otherid;
ToggleWindows();
LblRecipient.Text = Authenticate.ConvertIdToUsername(otherid);
ChatRepeater.DataSource = RetrieveMessages(otherid);
ChatRepeater.DataBind();
return;
}
}